Table 2-1.

The clinical outcomes during the 30 days of oropharyngeal probiotic intervention among children with RRTi in cold season.

	Probiotic group (n = 47)	Control group (n = 50)	P -value
Incidence of respiratory tract infections	7/47 (14.89%)	17/50 (34.00%)	0.045
Respiratory symptoms onset (days)	20	65
Sick days (days/person)	0.42 ± 1.05	1.30 ± 2.22	0.030
Duration of each episode (days/episode)	2.85 ± 0.69	3.93 ± 2.11	0.034
Absence from school (days/person)	0.26 ± 0.65	1.32 ± 2.33	0.040
Absence from work (days/person)	0.02 ± 0.14	0.60 ± 1.55	0.016
Taking antibiotics (days/person)	0.02 ± 0.14	0.64 ± 1.93	0.052
Taking anti-viral drug (days/person)	0.06 ± 0.32	0.60 ± 1.55	0.045
Taking antipyretics drug (days/person)	0	0.18 ± 0.82	0.086

X ± S is used to describe the average level and variability of the data.